In the R,S system, which of the following groups has lowest priority?
A) aldehyde
B) carboxyl
C) ketone
D) primary alcohol
D
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Why are igneous rocks that consist of coarse-grained crystals called phaneritic?
A) Phaneritic comes from the Greek word aphaneros, meaning invisible. B) They form deep within the ocean. C) Phaneritic comes from the Greek word phaneros, meaning visible. D) They are porphyritic rocks.
Atoms that have an electrical charge due to a gain or loss of electrons are called ________
A) isotopes B) ions C) periodic elements D) isochrons
Centrifugal force is least important on this scale
A) planetary scale. B) synoptic scale. C) mesoscale. D) microscale. E) Centrifugal force is equally important at all scales.
The predominant weather in the Pacific Northwest ____
a. ?makes mudflows the most serious concern in eruptions b. ?is likely to carry vog over major metropolitan areas c. ?is not expected to increase the danger of volcanic damage d. ?may interfere with evacuation and put more people at risk e. ?is likely to increase the chance of pyroclastic flows